IPA: /ˌɪrɪˈzəʊlʃən/
KK: /ˌɪrɪˈzəʊlʊʃən/
A state of being uncertain or indecisive about what to do; not being able to make a clear decision.
Her irresolution about which job to take made her feel anxious.
Irresolution → It is formed from "ir-" (meaning not) and "resolution" (from Latin "resolutio", meaning a breaking up or loosening). The word describes a state of not being resolved or certain, indicating indecision or uncertainty.
Think of 'not' ('ir-') being combined with a 'breaking up' ('resolution') of decisions — that's why irresolution means a lack of decision.